EFFECTS OF SPIN-ISOSPIN MODES IN TRANSPORT SIMULATIONS

In-medium properties derived for nuclear matter in a microscopic pi+NN -1 + Delta N-1 model are incorporated into transport simulations of nu clear collisions by means of a local-density approximation and by util izing a local medium frame. Certain features of the transport results differ from those based on the corresponding vacuum properties. Compar isons of the pi and Delta production rates, as well as pion energy spe ctra, are discussed in particular. (C) 1997 Published by Elsevier Scie nce B.V.